Project description:Integrated analysis of whole-genome sequencing, long-range optical mapping, single-cell DNA sequencing, and fluorescence in situ hybridization to find extrachromosomal DNA (ecDNA) as the primary source of MYC amplifications and driver fusions in SCLC. ecDNAs bring to proximity enhancer elements and oncogenes through circularization, creating transcription-amplifying units, driving heterogeneity of MYC gene dosage and expression of SCLC lineage-defining transcription factors.
Project description:Long time considered as « junk DNA », the evolutive force of transposable elements (TEs) is now well established and TEs contribute strongly to eukaryote genome plasticity. However, it is difficult to fully characterize the mobile part of a genome, or active mobilome, and tracking TE activity remains challenging. He we have applied the detection of extrachromosomal circular DNA (mobilome-seq) as a diagnostic for plant TE activity on Poplar mersitems from WT and ddm1 RNAi plants grown in normal or hydric stress conditions.
Project description:Integrated analysis of whole-genome sequencing, long-range optical mapping, single-cell DNA sequencing, and fluorescence in situ hybridization to find extrachromosomal DNA (ecDNA) as the primary source of MYC amplifications and driver fusions in SCLC. ecDNAs bring to proximity enhancer elements and oncogenes through circularization, creating transcription-amplifying units, driving heterogeneity of MYC gene dosage and expression of SCLC lineage-defining transcription factors.
Project description:Integrated analysis of whole-genome sequencing, long-range optical mapping, single-cell DNA sequencing, and fluorescence in situ hybridization to find extrachromosomal DNA (ecDNA) as the primary source of MYC amplifications and driver fusions in SCLC. ecDNAs bring to proximity enhancer elements and oncogenes through circularization, creating transcription-amplifying units, driving heterogeneity of MYC gene dosage and expression of SCLC lineage-defining transcription factors.
